Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Damian Muszynski |
212 |
78.23% |
1 |
9.09% |
| Tadeusz Struk |
46 |
16.97% |
6 |
54.55% |
| Wojciech Ziemba |
7 |
2.58% |
1 |
9.09% |
| Giovanni Cabiddu |
3 |
1.11% |
1 |
9.09% |
| Bruce W Allan |
2 |
0.74% |
1 |
9.09% |
| Marco Chiappero |
1 |
0.37% |
1 |
9.09% |
| Total |
271 |
|
11 |
|
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright(c) 2023 Intel Corporation */
#include <linux/container_of.h>
#include <linux/dev_printk.h>
#include <linux/export.h>
#include <linux/jiffies.h>
#include <linux/ktime.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include "adf_admin.h"
#include "adf_accel_devices.h"
#include "adf_common_drv.h"
#include "adf_gen4_timer.h"
#define ADF_GEN4_TIMER_PERIOD_MS 200
/* This periodic update is used to trigger HB, RL & TL fw events */
static void work_handler(struct work_struct *work)
{
struct adf_accel_dev *accel_dev;
struct adf_timer *timer_ctx;
u32 time_periods;
timer_ctx = container_of(to_delayed_work(work), struct adf_timer, work_ctx);
accel_dev = timer_ctx->accel_dev;
adf_misc_wq_queue_delayed_work(&timer_ctx->work_ctx,
msecs_to_jiffies(ADF_GEN4_TIMER_PERIOD_MS));
time_periods = div_u64(ktime_ms_delta(ktime_get_real(), timer_ctx->initial_ktime),
ADF_GEN4_TIMER_PERIOD_MS);
if (adf_send_admin_tim_sync(accel_dev, time_periods))
dev_err(&GET_DEV(accel_dev), "Failed to synchronize qat timer\n");
}
int adf_gen4_timer_start(struct adf_accel_dev *accel_dev)
{
struct adf_timer *timer_ctx;
timer_ctx = kzalloc(sizeof(*timer_ctx), GFP_KERNEL);
if (!timer_ctx)
return -ENOMEM;
timer_ctx->accel_dev = accel_dev;
accel_dev->timer = timer_ctx;
timer_ctx->initial_ktime = ktime_get_real();
INIT_DELAYED_WORK(&timer_ctx->work_ctx, work_handler);
adf_misc_wq_queue_delayed_work(&timer_ctx->work_ctx,
msecs_to_jiffies(ADF_GEN4_TIMER_PERIOD_MS));
return 0;
}
EXPORT_SYMBOL_GPL(adf_gen4_timer_start);
void adf_gen4_timer_stop(struct adf_accel_dev *accel_dev)
{
struct adf_timer *timer_ctx = accel_dev->timer;
if (!timer_ctx)
return;
cancel_delayed_work_sync(&timer_ctx->work_ctx);
kfree(timer_ctx);
accel_dev->timer = NULL;
}
EXPORT_SYMBOL_GPL(adf_gen4_timer_stop);